
An apparatus is being developed for sampling water for signs of microbial life in an ocean hydrothermal vent at a depth of as much as 6.5 km. Heretofore, evidence of microbial life in deep-sea hydrothermal vents has been elusive and difficult to validate. Because of the extreme conditions ...
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A report discusses the methane and carbon monoxide/LOX (McLOx) rocket for ascent from Mars as well as other critical space propulsion tasks. The system offers a specific impulse over 370 s — roughly 50 s higher than existing space-storable bio- propellants. Current Mars in-situ propellant production (ISPP) technologies produce impure methane ...
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The design and testing of a structural system were implemented to hold the optics of the planned Space Interferometry Mission (SIM) at positions and orientations characterized by vibrational translation and rotation errors of no more than a few nanometers or a few milliarcseconds, respectively. Much of the effort was devoted ...
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A compression tool used to make 1-in.
(2.5-cm) diameter disks of high-temperature
polymers was designed to be shorter
and of larger diameter than conventional
tools to reduce heat loss to the
surrounding air, thus making more efficient
use of applied heat. This system is
less sensitive to the amount ...
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An enhanced version of the scheme
reported in “Pseudo-Waypoint Guidance
for Proximity Spacecraft Maneuvers”
(NPO-42753), NASA Tech Briefs, Vol. 31,
No. 6 (June 2007), page 73 was developed.
To recapitulate: the scheme provides
algorithms for guidance and control
(G&C) of a spacecraft maneuvering near
a small astronomical body. The open-loop
guidance problem ...
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